the ntsb and boeing, a technical team from boeing, they're investigating the fire on the dreamliner. it was found in a compartment with batteries, and electrical components. it's not entirely clear at this point exactly what caused the fire. it is believed that it might have been caused by one of the lithium batteries on the dreamliner. that is an issue, because the dreamliner uses lithium im batteries to power onboard electronics. way back in 2007 the faa issued special rules for the use of lithium im batteries because of the concern of flammability risk involving those batteries. this is the fourth dreamliner incident involving its electronics, or losing power, since december 4th. look at this timeline. back on november 4th, united took its first domestic 787 flight, at the time there had been no reports. a month later, a united flight going to niewark to houston, experienced mechanical problems, reporting a loss of power. cutter airways a few days later had to ground one of its 787 jets for what it said was a faulty generator. the 14th of december, united grounded the second of th